The plugin worked flawlessly until Java updated to 1.7.0_21 on Windows 7. I still can compile and upload by opening a console window, cd'ing to the BlueJ project directory and invoking nxjc.bat and nxj.bat. The error:

"Windows 7

Compiling=========compiling TestPilotCompiling MSMPilot.java

Internal error. The following directory does not exist: "C:\weg\TestPilot\\..\lib\pc"Internal error. The following directory does not exist: "C:\weg\TestPilot\\..\lib\nxt"Compiling TestRobot.java "

Is there anyone who knows about a workaround - despite using the console window, wich is a solution for me but not for my younger students?

BTW: a friend of mine as a professional programmer with Java told me, that the Java developers decided to change the handling of spaces and umlauts. Is this correct and may this be the reason for the plugin not working any more?